1 ; RUN: opt < %s -basicaa -memcpyopt -S | not grep {call.*memcpy.} 2 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64" 3 4 %a = type { i32 } 5 %b = type { float } 6 7 declare void @g(%a*) 8 9 define float @f() { 10 entry: 11 %a_var = alloca %a 12 %b_var = alloca %b 13 call void @g(%a* %a_var) 14 %a_i8 = bitcast %a* %a_var to i8* 15 %b_i8 = bitcast %b* %b_var to i8* 16 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %b_i8, i8* %a_i8, i32 4, i32 4, i1 false) 17 %tmp1 = getelementptr %b* %b_var, i32 0, i32 0 18 %tmp2 = load float* %tmp1 19 ret float %tmp2 20 } 21 22 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind 23
